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Full text of "The manufacture and properties of iron and steel"

5.98,                                     THE IRON INDUSTRY.
she exported 356,080 tons of wrought-iron and steel, or 73 per cent, of her output, showing the effect of the general revival in the iron industry.
Having regard to the coal and iron industry alone, we may divide the country into seven parts.   In the extreme south is the district of Malmohus, which produces about 250,000 tons of bituminous coaL per year, but this has no bearing on the iron trade.   On the sQiuthwest is the district of Elfsborgs, where two open-hearth furnaces make 3000 tons of steel per year.   In the immediate vicinity of Stockholm, in the districts of Stockholm, Upsala and Sbderman-•laTfrfVa temall qii-antity <of ore is mined, and there are eighteen works producing 7 'per cent. > of the iron and steel output of the cb'totry.   In-the sbuthieini ceritual portion, comprising the districts of Ostergb'tland, Jbnkoping, Eronoberg, ICalmar and Bleikinge, are 21 works making '8 per cent., A little north of Stockholm is the district of Gefleborg making 15 per cent.
x The western central portion, including the district of Vermland, Orebro, Yestmanland and Xopparberg, is the great center of manufacture.   This district in 1900, notwithstanding the great development in the extreme -north in the Gellivare mines, raised 55 per cent, of 'all the ore produced in Sweden, nearly one-half of this eoming from the mines at Grangesberg.   This last-named ore runs i ;|>.<5"'j»e;r reept. ia metallic iron and .08 per cent, in phosphorus, and is eacporled*   It is in this region that the old mines of l^orberg and Persberg are located, some of which have ibeem worked for six 'and .seven.huridred years, and which have made Sweden Jaan'ous for the'quality-of her products. / JThjere 'a-re 56 iron wprks in this western central section, and in tfee .year 1900 they madelM/per cent, of all the pig-iron and nearly 70 per Gent, .of, all it^e irto aiM steel.   There were 179 Lancashire healths, W icpmyertess making & total of 58,392 tons in the year, and 34 open-hearth furnaces, making 156,110 tons of steel.   The B'essenief coni^eriers averaged 3AOO tons per year or less than 300 tops-;per month. /Hue capacity ol, Swedish converters is from three toj six, ;t;ons. The iroii is taken to them directly from the blast fur-pace and tqnly tib^ee, ,to fife feats are blown per day. , I^Fo the oktsidfe - woiPlidjij 'lOio^1, o'l tlift inpst, important features of Swedeiit todayl frs, ^e lexflottattoii, <>£^'tfce great iron mines recently. opened! beneath thfe ^ 0^4 €liele. 'At present the Gellivare minea